Springpad and Diigo allow you to save and organize bookmarks links that might be useful to the Personal project. Both sites also allow you to tag your saved bookmarks making it easier to find links that you associated with a certain topic.
Both websites have different pros. Springpad has a notebook feature which helps you organize between different projects. Diigo has the option of creating groups so that you can share relevant information with people who are might be working on projects with you.